3 years ago

What is the predicted change in the boiling point of water when 2.10 g of

Chemistry

1 answer:

daser333 [38]3 years ago

6 0

Answer:

A: 0.0028°C

Explanation:

Hopefully this helps!

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True or false?<br><br> When sodium and chlorine combine and bond, a molecule is formed.

CaHeK987 [17]

When Sodium and Chlorine come together they transfer an electron.

- Source: google

Hopefully this was clear and you understood!

3 0

3 years ago

1.<br> Events in which molten rock spews out of<br> the mantle as ash, lava, and gases

Travka [436]

Answer:

Landslides, Volcanoes, Earthquakes, and Floods. A opening in the Earth's surface through which melted rock, gases, and ash escape. Events in which molten rock spews out from the mantle to the surface of Earth as ash, lava, and gases

Explanation:

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3 years ago

Which is the molar mass of H2O?

Svetllana [295]

H=(2x1.008)=2.016
O= 15.999

15.999
+ 2.016
______
18.015 g/mol :)

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3 years ago

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The half life for the decay of carbon-14 is 5.73 x 10 years. Suppose the activity due to the radioactive decay of the carbon-14

Elena-2011 [213]

Answer:

Age of the atifact is $4.2\times 10^{2}$ years

Explanation:

For first -order radioactive decay- $A_{t}=A_{0}(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}}$
$A_{t}$ represents activity of radioactive nuclide after t time, $A_{0}$ represents initial activity of radioactive nuclide and $t_{\frac{1}{2}}$ represents half-life
Here, $A_{t}=19Bq$ , $A_{0}=20Bq$ and $t_{\frac{1}{2}}=5.73\times 10^{3}years$